LOINC
Version 2.67

71485-7Cup-disc ratio Right optic nerve by OphthalmoscopyActive

Term Description

Measures the progress of glaucoma. The cup-to-disc ratio compares the diameter of the "cup" portion of the optic disc with the total diameter of the optic disc. Results are a decimal range from 0.0 to 1.0.
Source: Regenstrief LOINC

Part Description

LP149840-3   Cup-disc ratio
The cup to disc ratio is the ratio of the diameter of the optic disc cup to the diameter of the optic disc. Normal is less than 0.5, and a ratio larger than 0.5 raises the suspicion of glaucoma. Source: Regenstrief LOINC

Fully-Specified Name

Component
Cup-disc ratio
Property
LenRto
Time
Pt
System
Optic nerve.right
Scale
Qn
Method
Ophthalmoscopy

Additional Names

Short Name
Cup-disc ratio Optic n-R Ophthalmoscopy

Basic Attributes

Class
EYE.PX
Type
Clinical
First Released
Version 2.40
Last Updated
Version 2.67
Order vs. Observation
Observation

Language Variants Get Info

zh-CNChinese (CHINA)
视盘凹陷与视盘直径比率:长度比率:时间点:视神经.右侧:定量型:检眼镜检查法
it-ITItalian (ITALY)
Rapporto cup/disc:LenRto:Pt:Nervo ottico.destro:Qn:Oftalmoscopia

Example Units

Unit Source
{ratio} Example UCUM Units

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=71485-7